So that you understand what I'm trying to do:
Excuse me, i've tried to reply, but i've written wrong things.
But... CFG Type should be ADS1102CAL... otherwise some pointers may point to wrong memory addresses: SDS1204CF has 24kpoint memory, ADS1102CAL 40kpoints memory (at this point... i hope).
EDIT
The .cfg file flashed is the first ATTEN file that you have posted.
I've tried to update to 5.01.2.32 fw release, update ok and oscilloscope appear as ADS1102CAL. The fw update did not affect the configuration.
I can confirm that the time update of the track is much better than with SIGLENT.cfg, but it is not regular: some points are lost. I think it depends on the wrong model (SDS1204CF) in .cfg file.
Can you try with SDS1102CNL or ADS1102CAL please?
Thanks.